Concrete-roofing-tile machine or mold.



E. R. JAHNA. CONCRETE ROOFING TILE MACHINE 0R MOLD.

APPLICATION FILED MAR. 10. I917 Patented une 18, 1918.

3 SHEETS-SHEET I.

INVENTOFI E. R. JAHNA.

CONCRETE ROOFING TILE MACHINE 0R MOLD.

' APPLICATION FILED MAR. 10. I917.

Patented June 18, 1918.

3 SHEETS-SHEET 2.

INVENTOR ATTORNEY E. R. JAHNA.

CONCRETE ROOFING TILE MACHINIE 0R MOLD.

APPLICATION FILED MAR-10,191?- 1 9, 10 PatentedJune 18, 1918.

3 SHEETSSHEET 3- LAW E" C L 9 I F g 1 I INVENTOR Tin WITNESSES 93 (XE/iii.

ATTORNEY ens Ell/[IL R. JAHNA, 0F MACON, GEORGIA, ASSIGNOR TO JOSEPH H. WOOLLING, OF INDIANAPOLIS, INDIANA.

CONGRETE-BOOFING-TILE MACHINE 0R MOLD.

Application filed March 10, 1917.

To all whom it may concern Be it known that I, EMIL R. JAHNA, a subject of the King of Bohemia, residing at Macon, in the county of Bibb and State of Georgia, have invented new and useful Improvements in Concrete-Roofing-Tile Machines or Molds, of which the following is a specification.

This invention is a concrete roofing tile machine or mold.

It has for one object to provide a machine or mold having adjustable side guides and a table with spacing blocks, to which may be secured the side guides.

Another object is to provide means for placing the wire so that it may be firmly embedded in the tile during the process of formation.

A further object is to provide a machine adapted for use with a removable pallet, which may be mounted upon leveling screws carried by the table.

A still further object is to provide a suit able lifting mechanism to force the pallet out of engagement with the box after the tile has been formed thereon.

One purpose of this invention is to also provide means consisting of cutting-off frames to form the ends of the tile for an interlocking feature.

Another purpose is to provide a tile having a wire embedded therein for the purpose of tying the tiles together and to the roof by positioning the wire at one end of the tile upon its lower side.

The machines in common use do not provide means whereby the side guides or'rails may be kept in adjustment at all times nor do they make provision whereby the ends of the tiles may be formed while the pallet is in the machine. The machines in use, when it is desired to change the adjustment of the side rails or guides, depend upon shims to maintain them at a predetermined height after having been changed in their adjustment. Also it is not known that any of the machines embody spacing blocks to maintain the side guides of rails the proper distance apart in relation to the box.

The invention in aiming to overcome the several objections found in existing machines consists of the following features Specification of Letters Patent.

Patented June 18, 191%.

Serial No. 153,900.

broadly stated :A table suitably supported upon legs, the table having a box including spacing elements formed integrally therewith, guides that are adjustable by means of leveling screws and slots, and means to secure and maintain adjustment after having been made through positive locking means which cooperate with the spacing elelnents, a cutting-oil frame pivotally mounted at one end of the machine and comprising two movable members which cooperate with the pallet in the formation of one of the ends to make a water seal or weather tight joint, the guides or side rails being so formed at one end as to provide a somewhat rounded end to the tile, a pallet of the desired conformation having a groove which may be disposed with a holding wire. leveling screws carried by the table to level the pallet, means to lift the pallet and the shingle from the table, and a movable bar adapted.to cooperate with the guides or side rails, and so formed upon one side that it acts as a mold for the upper side of the tile.

One practical form of construction will be described and illustrated in the accompanying drawings, in which Figure 1 is a perspective View;

Fig. 2 is a top plan view;

Fig. 3 is a sectional view 011 the line 3-3 of Fig. 2;

Fig. 4 is a sectional view on the line 44: of Fig. 2;

Fig. 5 is a front elevation of the tamping or forming bar;

Fig. 6 is a perspective view of the finished shingle or tile;

Fig. 7 is a detail view showing the method of using the wire for holding the tiles together and to the roof; and

Fig. 8 is a sectional view showing the con nection of the foot lever with the pallet lifting shaft.

In the preferred embodiment about to be described, a suitable framework, which con sists of the supporting legs 10 and 11, is provided. As shown, these legs are tied together at their lower ends by means of suitably secured tie rods 12, the legs 10 being also tied together by means of the cross member 13, and the legs 11 being tied together by means of the cross member 14. Mounted upon the legs 10 and 11 is a base or table 15, which may be secured to the legs in any suitable manner.

As shown more particularly in Figs. 2,

3 and 4, the table or base preferably consists of a single casting that comprises the spacing elements 16, 17, 18 and 19, and extending between the several spacing elements are the sides of the boxing indicated at 20, 21, 22 and 28.

. The base or table 15 is provided with suitable openings indicated at 24, 25, and 26, so that any mixture which may be scraped off during the formation of the shingle or tile will fall clear of the machine. As shown, these openings extend longitudinally of the base 15.

The guides or side rails indicated at 27 and 28 are provided with suitable slots 29 and 30. These slots are adapted to cooperate with securing bolts 31 and 82. These securing bolts, as shown in Fig. 1, cooperate with the spacing elements 18 and 19.

In order to adjust these guides or side rails 27 and 28, suitable leveling screws are provided. As shown, these leveling screws consist of a bolt having a square head 38 which is adapted to cooperate with slots 34 formed in the lower side of each of the guides or side rails. Each of the bolts is provided with a suitable threaded shank 35, which passes through an opening formed in the base or table 15. To maintain the bolts at predetermined points, suitable locking nuts 36 and 37 are employed, and as shown more particularly in Fig. 4, the nuts are adapted to clamp the base or table between them, and thus lock the bolts in a secure manner.

Toward the rear ends of the guides or side rails 27 and 28, there is formed in each of them a curved portion, indicated at 38. As shown, in Fig. 8, this curved portion is formed in the upper side. This curved portion is for the purpose of permitting the tamping bar to form curved ends upon one end of the tile or shingle as indicated in Fig. 6. Adjacent the central opening 25 formed in the base or table 15, there are provided four leveling screws 39, 40, 41 and 42. As shown, each of these screws comprises a head 43, a threaded shank 44, and a nut 45. The threaded shank portion 44 is adapted to cooperate also with a threaded hole formed in the table. Upon the under side of the table and surrounding the hole is a suitable boss 46 so that a large bearing surface may be afiorded for the screw and tend to maintain the head 43 in its proper position when locked by means of the nut 45 acting on the threaded portion 44, the details of this being shown more particularly in Fig. 4. Upon the tops of these leveling screws, the pallet indicated at 47 is adapted to be placed. The sides of this pallet cooperate with the sides 20, 21, 22 and 23 of the box which is cast integral with the base or table 15.

This method of construction, besides being very strong, affords the pallet little chance of moving during the operation of tamping and yet provides means whereby the pallet may be removed after the shingle or tile has been formed.

Adapted to ride upon the guides or side rails 27 and 28 is a tamping bar. This tamping bar is provided with handles 48, which may be formed as a part of the bar or detachable therefrom, as the circumstances require. The tamping bar has slots 49 and 50 which are adapted to cooperate with the guides 27 and 28, respectively. Formed in the lower side are two recesses 51 and 52, which are adapted to form the two rildges 53 and 54 of the upper side of the ti e.

At 55, there is another recess, which in cooperation with the tongue 56, is adapted to form the side water-tight seal and interlocking joint of the tile or shingle. As shown, in Fig. 6, this tile is provided with a groove 57, which extends substantially longitudinally of the tile and abuts against the upstanding portion 58, which forms the upper water seal or water-tight joint, when in cooperative position with another tile.

In Fig. 3, which is a sectional view of the pallet, there is also shown a wire 59. This wire has one end which projects through the pallet 47, while the other end is bent to form an open eye, and as shown extends into an open space, and when the concrete mixture is positioned on the pallet the eye end is firmly embedded adjacent one end of the tile. To allow for the projection or insertion of the end 60 through the pallet, a suitable hole 61 is employed. As shown in Fig. 3, the wire has a substantially right angular bend to produce the handle 60 which in projecting through the hole 61 permits the wire 59 to lie in a groove 62. This is done in order to prevent any movement of the wire 59 during the formation of the tile.

Disposed at the rear end of the machine are two pedestal bearings indicated at 63 and 64. These bearings are secured to the base or table 15 by means of the usual bolts 65. Suitably journaled in the upper end of each pedestal is a. shaft 66. This shaft carries the cutting-off frame, which consists of the side arms 67 and 68 and the cross bars 69 and 70. The side members 67 and 68 are adapted to cut off the sides of the tile while the cross members 69 and 70 are adapted to cut off the ends. To assist in doing this, the frame rests upon the boxing. The side members 67 and 68 are provided with curved portions 71 and 7 2, respectively, and

a in the free ends of these curved portions,

there is provided a suitable hole. Sun rounding each hole in each of the frames are suitable bosses to provide a large hearing contact with the shaft 66. This frame is secured to the shaft 66 by means of the set screws 7 3.

Mounted upon the shaft 66 for free rota tion thereon, are two arms 7 4: and 75. These arms are joined together at their free ends by means of a cross member 76. This cross member 76 is adapted to cooperate with the side members 67 and 68 of the side frames and with the top of the tile or shingle. As shown in Fig. 2, it may be seen that the member 76 when in position upon the frame is spaced from the front member of the said frame. This is done so that the interlocking and water seal joint indicated at 58 may be formed preliminary to the removal of the pallet and the tile from the machine. The cross member 76 is so shaped that the shoulder portions 77 and 78 are formed in the tile as indicated in Fig. 6. In order to form these shoulders the blocks 7 9 and 80 are employed.

To maintain the arms 74: and 75 against movement upon the shaft 66 suitable collars 81 are employed, and these collars may be secured to the shaft by means of the set screws 82.

Extending transversely of the base or table 15 is a downwardly curved brace or guide member 83, which is provided at its lowermost portion with a hole through which projects the shaft 84. The upper end of this shaft carries a spider 85, and in the upper end of this spider are mounted suitable pins 86 which project upwardly through suitable holes formed in the base or table 15. The upper ends of these pins 86 are adapted to contact with the underside of the pallet 47.

The spider may be secured to the shaft 86 in any convenient or suitable manner.

The guide member 83 may be suitably secured to the base or table by means of the bolts 87 as shown. The guide member also serves as a brace across the center of the table.

Suitably secured to the shaft 8-; above the guide portion of the guide member 83 is a collar 88 having the set screw 89. This collar may be positioned differently so as to allow for variations in the vertical travel of the shaft 8%. Near the lower end of the shaft 8%, there is provided another collan 90, which has a set screw 91. Projecting from this collar 90 is a stud or bearing portion 92 which has a suitable head 93. The bearing portion 92 is adapted to cooperate with a suitable hole formed in the end of the foot lever 9a. This connection, which is shown more particularly in Fig. 8, is adapted to permit the shaft 84: to travel in a vertical direction, and have a pivotal connection with the lever 94.

The lever 9a is provided at its outer end with a suitable foot rest 95, and intermediate of its length there is provided a pivotal connection, indicated at 96. This pivotal connection is preferably secured to the cross member 13 of the legs 10, as shown more particularly in Fig. 1.

As shown in Fig. 6, the finished tile is provided with a side and end which form an interlocking feature and a water seal joint with adjoining tiles. This interlocking and water seal feature is indicated by means of the groove 57, which is formed longitudinally along one side and the cross or end piece 58. As shown, this tile has the shoulder portion 77 and 7 8, the shoulder portion 77 cooperating with the groove 57.

The tile, as shown, is provided with a rounded end, which permits the rain to more freely drip and also acts to prevent the wind from getting under the tile and lifting it up to break the joint with the tile adjacent it.

In Fig. 7, the cooperation of the rounded end of the tile with the underlying tile is more clearly shown, and in connection with this figure it will be noticed that the wire 59 contacts with the underside of the tile in which it is embedded, and thus lies between it and the adjacent tile. The tile end 58 being substantially flat, the wire is thus adapted to have in the beginning a straight pull. The wire is then bent downward and around the end 58, around the end of the lower tile, and is suitably secured to the usual strip 97 upon which the lower tile rests. The end of the wire may then be secured to a suitable projection or nail on the strip 97. The upper tile by this means and the positioning of the wire holds both the upper and lower tiles in firm engagement against displacement at all times.

As shown more particularly in Fig. 4:, the tamping bar is shown in position upon the guides or side rails 27 and 28, the pallet 4:7 being in position and the mixture having been placed upon the top thereof. The tamping bar is passed backward and forward, which presses down the mixture and forms it into a more compact mass in intimate contact with the pallet. By this means the under side of the tile is formed, and by means of the several recesses and the tongue formed in the tamping bar, the greater portion of the upper side is formed. To complete the operation the cuttingoff frame is dropped into position in contact with the boX and then the frame which is adapted to form the front end is brought down and rests upon the cutting-off frame. In the space which exists between the front cross member of the cutting-off frame and the cross member 76 which at this time is forming a portion of the mold, additional concrete is placed therein to form the upper end of the tile 58. At this time the shoulder portions 7 7 and 78 are also formed.

After the completion of the shingle or tile, the frame carrying the end forming portions is raised, While the cutting-off frame is left in position, so that When the foot lever is operated and the pins contact with the lower side of the pallet, the pallet is raised from the box and through the cutting-ofii frame, which squares up the tile or shingle and makes the ends square and true. The pallet With its tile may then be carried to a suitable EMIL R. JAHNA.

Qopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

